Characterisation of Czech modern mosaic mortars

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Characterisation of Czech modern mosaic mortars

Popis výsledku v původním jazyce

The main goal of this thesis was to characterise mosaic fixing mortars of 27 mosaics from the late 19th century to the late 20th century. The mortars were examined by SEM—EDS, XRD, light and light polarising microscopy, thermal analysis coupled with EGA-MS, FTIR and gas chromatography. The mosaics studied come from different mosaic workshops and periods but all of them relate to the present-day Czech Republic. Although the analysed set is small, some trends and preferences in the use of materials can be traced in the works of different workshops. Linseed oil turned out to be an important compound of some late 19th/ early 20th century mortars. Therefore, a methodology of linseed oil content estimation in the historic mortars was proposed based of the three methods (TG coupled with EGA-MS and TOC). The approach based on EGA-MS (identification and analysis of m/z 95 signal corresponding to “oil-specific” [C7H11]+ ion), developed on a set of model mortars and tested on authentic mosaic mortars´ samples, provided the most satisfactory results.

Název v anglickém jazyce

Characterisation of Czech modern mosaic mortars

Popis výsledku anglicky

The main goal of this thesis was to characterise mosaic fixing mortars of 27 mosaics from the late 19th century to the late 20th century. The mortars were examined by SEM—EDS, XRD, light and light polarising microscopy, thermal analysis coupled with EGA-MS, FTIR and gas chromatography. The mosaics studied come from different mosaic workshops and periods but all of them relate to the present-day Czech Republic. Although the analysed set is small, some trends and preferences in the use of materials can be traced in the works of different workshops. Linseed oil turned out to be an important compound of some late 19th/ early 20th century mortars. Therefore, a methodology of linseed oil content estimation in the historic mortars was proposed based of the three methods (TG coupled with EGA-MS and TOC). The approach based on EGA-MS (identification and analysis of m/z 95 signal corresponding to “oil-specific” [C7H11]+ ion), developed on a set of model mortars and tested on authentic mosaic mortars´ samples, provided the most satisfactory results.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů